[BioC] Error message with ReadAffy

[Xuejun Peng]

I'm running Bioconductor release 1.2 with R 1.7.1 in a Windows 2000 
environment. I encoutered the following problem when I try to read affy 
data. Can anyone help?
(I did not have this problem with older versions.)

Thanks.

Peng

*************************************************
 ReadAffy("NAWM17_10_4A.cel")
Environment hgu133acdf is not available.
This environment contains needed probe location information.
We will try to download and install the hgu133acdf package.

Note: No specified download type, defaulting to Win32
[1] "Attempting to download hgu133acdf from BIOCcdf/"
Error in download.file(fileURL, destFile, mode = "wb", quiet = TRUE, 
method = method) :
        unsupported URL scheme
Error in inherits(cdf.env, "try-error") : Object "cdf.env" not found